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In JoVE (1)
Other Publications (5)
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Articles by Vladimir Camarena in JoVE
Een primaire Neuron Cultuurstelsel voor de Studie van Herpes Simplex Virus latentie en reactivatie
Mariko Kobayashi1, Ju-Youn Kim1, Vladimir Camarena2, Pamela C. Roehm3, Moses V. Chao2,4,5,6,7, Angus C. Wilson1, Ian Mohr1
1Department of Microbiology, New York University School of Medicine, 2Molecular Neurobiology Program, Skirball Institute for Biomolecular Medicine, New York University School of Medicine, 3Department of Otolaryngology, New York University School of Medicine, 4Department of Cell Biology, New York University School of Medicine, 5Department of Physiology and Neuroscience, New York University School of Medicine, 6Department of Psychiatry, New York University School of Medicine, 7Center for Neural Science, New York University School of Medicine
Het protocol beschrijft een efficiënt en reproduceerbaar modelsysteem om te studeren herpes simplex virus type 1 (HSV-1) latentie en reactivatie. De test maakt gebruik van homogene sympathiek neuron culturen en maakt het mogelijk om moleculaire dissectie van virus-neuron interacties met behulp van een scala aan hulpmiddelen met inbegrip van RNA-interferentie en expressie van recombinante eiwitten.
Other articles by Vladimir Camarena on PubMed
Full Resistance of Herpes Simplex Virus Type 1-infected Primary Human Cells to Alpha Interferon Requires Both the Us11 and Gamma(1)34.5 Gene Products
Journal of Virology. Sep, 2004 | Pubmed ID: 15331752
The gamma(1)34.5 gene product is important for the resistance of herpes simplex virus type 1 (HSV-1) to interferon. However, since the inhibition of protein synthesis observed in cells infected with a gamma(1)34.5 mutant virus results from the combined loss of the gamma(1)34.5 gene product and the failure to translate the late Us11 mRNA, we sought to characterize the relative interferon sensitivity of mutants unable to produce either the Us11 or the gamma(1)34.5 polypeptide. We now demonstrate that primary human cells infected with a Us11 mutant virus are hypersensitive to alpha interferon, arresting translation upon entry into the late phase of the viral life cycle. Furthermore, immediate-early expression of Us11 by a gamma(1)34.5 deletion mutant is sufficient to render translation resistant to alpha interferon. Finally, we establish that the Us11 gene product is required for wild-type levels of replication in alpha interferon-treated cells and, along with the gamma(1)34.5 gene, is an HSV-1-encoded interferon resistance determinant.
The Journal of Neuroscience : the Official Journal of the Society for Neuroscience. Aug, 2009 | Pubmed ID: 19675227
Nature and Duration of Growth Factor Signaling Through Receptor Tyrosine Kinases Regulates HSV-1 Latency in Neurons
Cell Host & Microbe. Oct, 2010 | Pubmed ID: 20951966
Herpes simplex virus-1 (HSV-1) establishes life-long latency in peripheral neurons where productive replication is suppressed. While periodic reactivation results in virus production, the molecular basis of neuronal latency remains incompletely understood. Using a primary neuronal culture system of HSV-1 latency and reactivation, we show that continuous signaling through the phosphatidylinositol 3-kinase (PI3-K) pathway triggered by nerve growth factor (NGF)-binding to the TrkA receptor tyrosine kinase (RTK) is instrumental in maintaining latent HSV-1. The PI3-K p110α catalytic subunit, but not the β or δ isoforms, is specifically required to activate 3-phosphoinositide-dependent protein kinase-1 (PDK1) and sustain latency. Disrupting this pathway leads to virus reactivation. EGF and GDNF, two other growth factors capable of activating PI3-K and PDK1 but that differ from NGF in their ability to persistently activate Akt, do not fully support HSV-1 latency. Thus, the nature of RTK signaling is a critical host parameter that regulates the HSV-1 latent-lytic switch.
The Laryngoscope. Oct, 2011 | Pubmed ID: 21898423
Vestibular neuritis is a common cause of both acute and chronic vestibular dysfunction. Multiple pathologies have been hypothesized to be the causative agent of vestibular neuritis; however, whether herpes simplex type I (HSV1) reactivation occurs within the vestibular ganglion has not been demonstrated previously by experimental evidence. We developed an in vitro system to study HSV1 infection of vestibular ganglion neurons (VGNs) using a cell culture model system.
Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology. Jan, 2012 | Pubmed ID: 22158020
Reactivation of herpes simplex virus type 1 (HSV-1) in geniculate ganglion neurons (GGNs) is an etiologic mechanism of Bell's palsy (BP) and delayed facial palsy (DFP) after otologic surgery.